<template>
  <div class="list" ref="wrapper">
    <div>
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="button">北京</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="button-list">
          <div class="button-wrapper" v-for="item of hot" v-bind:key="item.id">
            <div class="button">{{item.name}}</div>
          </div>
        </div>
      </div>
      <div class="area" v-for="(item, key) of cities" v-bind:key="key" :ref="key">
        <div class="title border-topbottom">{{key}}</div>
        <div class="item-list">
          <div class="item border-bottom" v-for="innerItem of item" v-bind:key="innerItem.id">{{innerItem.name}}</div>
        </div>
      </div>
  </div>
  </div>
</template>

<script>
import Bscroll from 'better-scroll'
export default {
  name: 'CityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~solo/varibles.styl'
  .list
    overflow: hidden
    position: absolute
    top: 1.58rem
    left:0
    right:0
    bottom: 0
  .border-topbottom
    &:before
      border-color: #ccc
    &:after
      border-color: #ccc
  .border-bottom
    &:before
      border-color: #ccc
  .title
    line-height: 0.54rem
    background: #eee
    padding-left: 0.2rem
    color: #666
  .button-list
    padding: 0.1rem
    overflow: hidden
    padding: 0.1rem 0.6rem 0.1rem 0.1rem
    .button-wrapper
      float: left
      width:33.33%
      .button
        text-align: center
        margin: 0.1rem
        padding: 0.1rem 0
        border-radius: 0.06rem
        border: 0.02rem solid #ccc
  .item-list
    .item
      line-height: 0.76rem
      padding-left: 0.2rem
</style>
